Standard for reception of a ue

ABSTRACT

One disclosure of the present specification provides a method for performing communication by a user equipment (UE). The method comprises the steps of: receiving a downlink signal, wherein the downlink signal is received with channel bandwidth of 400 MHz, wherein the downlink signal is received via n263 frequency band, wherein the UE is power class 3 UE, wherein the transceiver is configured to satisfy a Radio Frequency (RF) requirement, wherein the RF requirement includes at least one of REFSENS (Reference Sensitivity) and EIS (Effective Isotropic Sensitivity) spherical coverage.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No.63/297,807, filed on Jan. 10, 2022, the contents of which are all herebyincorporated by reference herein in their entirety.

TECHNICAL FIELD

The present specification relates to mobile communications.

BACKGROUND

3rd generation partnership project (3GPP) long-term evolution (LTE) is atechnology for enabling high-speed packet communications. Many schemeshave been proposed for the LTE objective including those that aim toreduce user and provider costs, improve service quality, and expand andimprove coverage and system capacity. The 3GPP LTE requires reduced costper bit, increased service availability, flexible use of a frequencyband, a simple structure, an open interface, and adequate powerconsumption of a terminal as an upper-level requirement.

Work has started in international telecommunication union (ITU) and 3GPPto develop requirements and specifications for new radio (NR) systems.3GPP has to identify and develop the technology components needed forsuccessfully standardizing the new RAT timely satisfying both the urgentmarket needs, and the more long-term requirements set forth by the ITUradio communication sector (ITU-R) international mobiletelecommunications (IMT)-2020 process. Further, the NR should be able touse any spectrum band ranging at least up to 100 GHz that may be madeavailable for wireless communications even in a more distant future.

The NR targets a single technical framework addressing all usagescenarios, requirements and deployment scenarios including enhancedmobile broadband (eMBB), massive machine-type-communications (mMTC),ultra-reliable and low latency communications (URLLC), etc. The NR shallbe inherently forward compatible.

Among the FR2 (Frequency Range 2: 24250 MHz-71000 MHz, FR2-1: 24250MHz-52600 MHz, FR2-2: 52600 MHz-71000 MHz) band, the introduction of ahandheld UE supporting the FR2-2 band is being discussed in the SPEC.Compared to a UE of the FR2-1 band, the number of array antennas usedand the characteristics of the RF element are different, so RFperformance standard of the UE should be defined in consideration ofthis.

RF performance standards for handheld UE supporting FR2-2 band should bedefined.

SUMMARY

RF performance standard for handheld UE supporting FR2-2 band isproposed.

The present specification may have various effects.

For example, by proposing a standard specification for a handheld UEsupporting the n263 band, communication between the network and the UEcan be guaranteed and commercialized.

Effects that can be obtained through specific examples of the presentspecification are not limited to the effects listed above. For example,various technical effects that a person having ordinary skill in therelated art can understand or derive from the present specification mayexist. Accordingly, the specific effects of the present specificationare not limited to those explicitly described herein, and may includevarious effects that can be understood or derived from the technicalcharacteristics of the present specification.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an example of a communication system to whichimplementations of the present disclosure is applied.

FIG. 2 shows an example of wireless devices to which implementations ofthe present disclosure is applied.

FIG. 3 shows an example of a wireless device to which implementations ofthe present disclosure is applied.

FIG. 4 shows an example of UE to which implementations of the presentdisclosure is applied.

FIG. 5 is a wireless communication system.

FIG. 6 shows an array antenna module type in FR2-2.

FIG. 7 shows an array antenna module of 1×8 in FR2-2.

FIG. 8 shows a procedure of a UE according to the disclosure of thepresent specification.

DETAILED DESCRIPTION

The following techniques, apparatuses, and systems may be applied to avariety of wireless multiple access systems. Examples of the multipleaccess systems include a code division multiple access (CDMA) system, afrequency division multiple access (FDMA) system, a time divisionmultiple access (TDMA) system, an orthogonal frequency division multipleaccess (OFDMA) system, a single carrier frequency division multipleaccess (SC-FDMA) system, and a multicarrier frequency division multipleaccess (MC-FDMA) system. CDMA may be embodied through radio technologysuch as universal terrestrial radio access (UTRA) or CDMA2000. TDMA maybe embodied through radio technology such as global system for mobilecommunications (GSM), general packet radio service (GPRS), or enhanceddata rates for GSM evolution (EDGE). OFDMA may be embodied through radiotechnology such as institute of electrical and electronics engineers(IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or evolved UTRA(E-UTRA). UTRA is a part of a universal mobile telecommunications system(UMTS). 3rd generation partnership project (3GPP) long term evolution(LTE) is a part of evolved UMTS (E-UMTS) using E-UTRA. 3GPP LTE employsOFDMA in DL and SC-FDMA in UL. Evolution of 3GPP LTE includes LTE-A(advanced), LTE-A Pro, and/or 5G NR (new radio).

For convenience of description, implementations of the presentdisclosure are mainly described in regards to a 3GPP based wirelesscommunication system. However, the technical features of the presentdisclosure are not limited thereto. For example, although the followingdetailed description is given based on a mobile communication systemcorresponding to a 3GPP based wireless communication system, aspects ofthe present disclosure that are not limited to 3GPP based wirelesscommunication system are applicable to other mobile communicationsystems.

For terms and technologies which are not specifically described amongthe terms of and technologies employed in the present disclosure, thewireless communication standard documents published before the presentdisclosure may be referenced.

In the present disclosure, “A or B” may mean “only A”, “only B”, or“both A and B”. In other words, “A or B” in the present disclosure maybe interpreted as “A and/or B”. For example, “A, B or C” in the presentdisclosure may mean “only A”, “only B”, “only C”, or “any combination ofA, B and C”.

In the present disclosure, slash (/) or comma (,) may mean “and/or”. Forexample, “A/B” may mean “A and/or B”. Accordingly, “A/B” may mean “onlyA”, “only B”, or “both A and B”. For example, “A, B, C” may mean “A, Bor C”.

In the present disclosure, “at least one of A and B” may mean “only A”,“only B” or “both A and B”. In addition, the expression “at least one ofA or B” or “at least one of A and/or B” in the present disclosure may beinterpreted as same as “at least one of A and B”.

In addition, in the present disclosure, “at least one of A, B and C” maymean “only A”, “only B”, “only C”, or “any combination of A, B and C”.In addition, “at least one of A, B or C” or “at least one of A, B and/orC” may mean “at least one of A, B and C”.

Also, parentheses used in the present disclosure may mean “for example”.In detail, when it is shown as “control information (PDCCH)”, “PDCCH”may be proposed as an example of “control information”. In other words,“control information” in the present disclosure is not limited to“PDCCH”, and “PDCCH” may be proposed as an example of “controlinformation”. In addition, even when shown as “control information(i.e., PDCCH)”, “PDCCH” may be proposed as an example of “controlinformation”.

Technical features that are separately described in one drawing in thepresent disclosure may be implemented separately or simultaneously.

Although not limited thereto, various descriptions, functions,procedures, suggestions, methods and/or operational flowcharts of thepresent disclosure disclosed herein can be applied to various fieldsrequiring wireless communication and/or connection (e.g., 5G) betweendevices.

Hereinafter, the present disclosure will be described in more detailwith reference to drawings. The same reference numerals in the followingdrawings and/or descriptions may refer to the same and/or correspondinghardware blocks, software blocks, and/or functional blocks unlessotherwise indicated.

FIG. 1 shows an example of a communication system to whichimplementations of the present disclosure is applied.

The 5G usage scenarios shown in FIG. 1 are only exemplary, and thetechnical features of the present disclosure can be applied to other 5Gusage scenarios which are not shown in FIG. 1 .

Three main requirement categories for 5G include (1) a category ofenhanced mobile broadband (eMBB), (2) a category of massive machine typecommunication (mMTC), and (3) a category of ultra-reliable and lowlatency communications (URLLC).

Referring to FIG. 1 , the communication system 1 includes wirelessdevices 100 a to 100 f, base stations (BSs) 200, and a network 300.Although FIG. 1 illustrates a 5G network as an example of the network ofthe communication system 1, the implementations of the presentdisclosure are not limited to the 5G system, and can be applied to thefuture communication system beyond the 5G system.

The BSs 200 and the network 300 may be implemented as wireless devicesand a specific wireless device may operate as a BS/network node withrespect to other wireless devices.

The wireless devices 100 a to 100 f represent devices performingcommunication using radio access technology (RAT) (e.g., 5G new RAT(NR)) or LTE) and may be referred to as communication/radio/5G devices.The wireless devices 100 a to 100 f may include, without being limitedto, a robot 100 a, vehicles 100 b-1 and 100 b-2, an extended reality(XR) device 100 c, a hand-held device 100 d, a home appliance 100 e, anIoT device 100 f, and an artificial intelligence (AI) device/server 400.For example, the vehicles may include a vehicle having a wirelesscommunication function, an autonomous driving vehicle, and a vehiclecapable of performing communication between vehicles. The vehicles mayinclude an unmanned aerial vehicle (UAV) (e.g., a drone). The XR devicemay include an AR/VR/Mixed Reality (MR) device and may be implemented inthe form of a head-mounted device (HMD), a head-up display (HUD) mountedin a vehicle, a television, a smartphone, a computer, a wearable device,a home appliance device, a digital signage, a vehicle, a robot, etc. Thehand-held device may include a smartphone, a smartpad, a wearable device(e.g., a smartwatch or a smartglasses), and a computer (e.g., anotebook). The home appliance may include a TV, a refrigerator, and awashing machine. The IoT device may include a sensor and a smartmeter.

In the present disclosure, the wireless devices 100 a to 100 f may becalled user equipments (UEs). A UE may include, for example, a cellularphone, a smartphone, a laptop computer, a digital broadcast terminal, apersonal digital assistant (PDA), a portable multimedia player (PMP), anavigation system, a slate personal computer (PC), a tablet PC, anultrabook, a vehicle, a vehicle having an autonomous traveling function,a connected car, an UAV, an AI module, a robot, an AR device, a VRdevice, an MR device, a hologram device, a public safety device, an MTCdevice, an IoT device, a medical device, a FinTech device (or afinancial device), a security device, a weather/environment device, adevice related to a 5G service, or a device related to a fourthindustrial revolution field.

The UAV may be, for example, an aircraft aviated by a wireless controlsignal without a human being onboard.

The VR device may include, for example, a device for implementing anobject or a background of the virtual world. The AR device may include,for example, a device implemented by connecting an object or abackground of the virtual world to an object or a background of the realworld. The MR device may include, for example, a device implemented bymerging an object or a background of the virtual world into an object ora background of the real world. The hologram device may include, forexample, a device for implementing a stereoscopic image of 360 degreesby recording and reproducing stereoscopic information, using aninterference phenomenon of light generated when two laser lights calledholography meet.

The public safety device may include, for example, an image relay deviceor an image device that is wearable on the body of a user.

The MTC device and the IoT device may be, for example, devices that donot require direct human intervention or manipulation. For example, theMTC device and the IoT device may include smartmeters, vending machines,thermometers, smartbulbs, door locks, or various sensors.

The medical device may be, for example, a device used for the purpose ofdiagnosing, treating, relieving, curing, or preventing disease. Forexample, the medical device may be a device used for the purpose ofdiagnosing, treating, relieving, or correcting injury or impairment. Forexample, the medical device may be a device used for the purpose ofinspecting, replacing, or modifying a structure or a function. Forexample, the medical device may be a device used for the purpose ofadjusting pregnancy. For example, the medical device may include adevice for treatment, a device for operation, a device for (in vitro)diagnosis, a hearing aid, or a device for procedure.

The security device may be, for example, a device installed to prevent adanger that may arise and to maintain safety. For example, the securitydevice may be a camera, a closed-circuit TV (CCTV), a recorder, or ablack box.

The FinTech device may be, for example, a device capable of providing afinancial service such as mobile payment. For example, the FinTechdevice may include a payment device or a point of sales (POS) system.

The weather/environment device may include, for example, a device formonitoring or predicting a weather/environment.

The wireless devices 100 a to 100 f may be connected to the network 300via the BSs 200. An AI technology may be applied to the wireless devices100 a to 100 f and the wireless devices 100 a to 100 f may be connectedto the AI server 400 via the network 300. The network 300 may beconfigured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR)network, and a beyond-5G network. Although the wireless devices 100 a to100 f may communicate with each other through the BSs 200/network 300,the wireless devices 100 a to 100 f may perform direct communication(e.g., sidelink communication) with each other without passing throughthe BSs 200/network 300. For example, the vehicles 100 b-1 and 100 b-2may perform direct communication (e.g., vehicle-to-vehicle(V2V)/vehicle-to-everything (V2X) communication). The IoT device (e.g.,a sensor) may perform direct communication with other IoT devices (e.g.,sensors) or other wireless devices 100 a to 100 f.

Wireless communication/connections 150 a, 150 b and 150 c may beestablished between the wireless devices 100 a to 100 f and/or betweenwireless device 100 a to 100 f and BS 200 and/or between BSs 200.Herein, the wireless communication/connections may be establishedthrough various RATs (e.g., 5G NR) such as uplink/downlink communication150 a, sidelink communication (or device-to-device (D2D) communication)150 b, inter-base station communication 150 c (e.g., relay, integratedaccess and backhaul (IAB)), etc. The wireless devices 100 a to 100 f andthe BSs 200/the wireless devices 100 a to 100 f may transmit/receiveradio signals to/from each other through the wirelesscommunication/connections 150 a, 150 b and 150 c. For example, thewireless communication/connections 150 a, 150 b and 150 c maytransmit/receive signals through various physical channels. To this end,at least a part of various configuration information configuringprocesses, various signal processing processes (e g, channelencoding/decoding, modulation/demodulation, and resourcemapping/de-mapping), and resource allocating processes, fortransmitting/receiving radio signals, may be performed based on thevarious proposals of the present disclosure.

AI refers to the field of studying artificial intelligence or themethodology that can create it, and machine learning refers to the fieldof defining various problems addressed in the field of AI and the fieldof methodology to solve them. Machine learning is also defined as analgorithm that increases the performance of a task through steadyexperience on a task.

Robot means a machine that automatically processes or operates a giventask by its own ability. In particular, robots with the ability torecognize the environment and make self-determination to perform actionscan be called intelligent robots. Robots can be classified asindustrial, medical, home, military, etc., depending on the purpose orarea of use. The robot can perform a variety of physical operations,such as moving the robot joints with actuators or motors. The movablerobot also includes wheels, brakes, propellers, etc., on the drive,allowing it to drive on the ground or fly in the air.

Autonomous driving means a technology that drives on its own, andautonomous vehicles mean vehicles that drive without user's control orwith minimal user's control. For example, autonomous driving may includemaintaining lanes in motion, automatically adjusting speed such asadaptive cruise control, automatic driving along a set route, andautomatically setting a route when a destination is set. The vehiclecovers vehicles equipped with internal combustion engines, hybridvehicles equipped with internal combustion engines and electric motors,and electric vehicles equipped with electric motors, and may includetrains, motorcycles, etc., as well as cars. Autonomous vehicles can beseen as robots with autonomous driving functions.

Extended reality is collectively referred to as VR, AR, and MR. VRtechnology provides objects and backgrounds of real world only throughcomputer graphic (CG) images. AR technology provides a virtual CG imageon top of a real object image. MR technology is a CG technology thatcombines and combines virtual objects into the real world. MR technologyis similar to AR technology in that they show real and virtual objectstogether. However, there is a difference in that in AR technology,virtual objects are used as complementary forms to real objects, whilein MR technology, virtual objects and real objects are used as equalpersonalities.

NR supports multiples numerologies (and/or multiple subcarrier spacings(SCS)) to support various 5G services. For example, if SCS is 15 kHz,wide area can be supported in traditional cellular bands, and if SCS is30 kHz/60 kHz, dense-urban, lower latency, and wider carrier bandwidthcan be supported. If SCS is 60 kHz or higher, bandwidths greater than24.25 GHz can be supported to overcome phase noise.

The NR frequency band may be defined as two types of frequency range,i.e., FR1 and FR2. The numerical value of the frequency range may bechanged. For example, the frequency ranges of the two types (FR1 andFR2) may be as shown in Table 1 below. For ease of explanation, in thefrequency ranges used in the NR system, FR1 may mean “sub 6 GHz range”,FR2 may mean “above 6 GHz range,” and may be referred to as millimeterwave (mmW).

TABLE 1 Frequency Range Corresponding designation frequency rangeSubcarrier Spacing FR1  450 MHz-6000 MHz  15, 30, 60 kHz FR2 24250MHz-52600 MHz 60, 120, 240 kHz

As mentioned above, the numerical value of the frequency range of the NRsystem may be changed. For example, FR1 may include a frequency band of410 MHz to 7125 MHz as shown in Table 2 below. That is, FR1 may includea frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or more. Forexample, a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) ormore included in FR1 may include an unlicensed band. Unlicensed bandsmay be used for a variety of purposes, for example for communication forvehicles (e.g., autonomous driving).

TABLE 2 Frequency Range Corresponding designation frequency rangeSubcarrier Spacing FR1  410 MHz-7125 MHz  15, 30, 60 kHz FR2 24250MHz-52600 MHz 60, 120, 240 kHz

Here, the radio communication technologies implemented in the wirelessdevices in the present disclosure may include narrowbandinternet-of-things (NB-IoT) technology for low-power communication aswell as LTE, NR and 6G. For example, NB-IoT technology may be an exampleof low power wide area network (LPWAN) technology, may be implemented inspecifications such as LTE Cat NB1 and/or LTE Cat NB2, and may not belimited to the above-mentioned names. Additionally and/or alternatively,the radio communication technologies implemented in the wireless devicesin the present disclosure may communicate based on LTE-M technology. Forexample, LTE-M technology may be an example of LPWAN technology and becalled by various names such as enhanced machine type communication(eMTC). For example, LTE-M technology may be implemented in at least oneof the various specifications, such as 1) LTE Cat 0, 2) LTE Cat M1, 3)LTE Cat M2, 4) LTE non-bandwidth limited (non-BL), 5) LTE-MTC, 6) LTEMachine Type Communication, and/or 7) LTE M, and may not be limited tothe above-mentioned names Additionally and/or alternatively, the radiocommunication technologies implemented in the wireless devices in thepresent disclosure may include at least one of ZigBee, Bluetooth, and/orLPWAN which take into account low-power communication, and may not belimited to the above-mentioned names. For example, ZigBee technology maygenerate personal area networks (PANs) associated with small/low-powerdigital communication based on various specifications such as IEEE802.15.4 and may be called various names.

FIG. 2 shows an example of wireless devices to which implementations ofthe present disclosure is applied.

Referring to FIG. 2 , a first wireless device 100 and a second wirelessdevice 200 may transmit/receive radio signals to/from an external devicethrough a variety of RATs (e.g., LTE and NR).

In FIG. 2 , {the first wireless device 100 and the second wirelessdevice 200} may correspond to at least one of {the wireless device 100 ato 100 f and the BS 200}, {the wireless device 100 a to 100 f and thewireless device 100 a to 100 f} and/or {the BS 200 and the BS 200} ofFIG. 1 .

The first wireless device 100 may include at least one transceiver, suchas a transceiver 106, at least one processing chip, such as a processingchip 101, and/or one or more antennas 108.

The processing chip 101 may include at least one processor, such aprocessor 102, and at least one memory, such as a memory 104. It isexemplarily shown in FIG. 2 that the memory 104 is included in theprocessing chip 101. Additional and/or alternatively, the memory 104 maybe placed outside of the processing chip 101.

The processor 102 may control the memory 104 and/or the transceiver 106and may be configured to implement the descriptions, functions,procedures, suggestions, methods and/or operational flowcharts describedin the present disclosure. For example, the processor 102 may processinformation within the memory 104 to generate first information/signalsand then transmit radio signals including the first information/signalsthrough the transceiver 106. The processor 102 may receive radio signalsincluding second information/signals through the transceiver 106 andthen store information obtained by processing the secondinformation/signals in the memory 104.

The memory 104 may be operably connectable to the processor 102. Thememory 104 may store various types of information and/or instructions.The memory 104 may store a software code 105 which implementsinstructions that, when executed by the processor 102, perform thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure. For example,the software code 105 may implement instructions that, when executed bythe processor 102, perform the descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure. For example, the software code 105 may control theprocessor 102 to perform one or more protocols. For example, thesoftware code 105 may control the processor 102 to perform one or morelayers of the radio interface protocol.

Herein, the processor 102 and the memory 104 may be a part of acommunication modem/circuit/chip designed to implement RAT (e.g., LTE orNR). The transceiver 106 may be connected to the processor 102 andtransmit and/or receive radio signals through one or more antennas 108.Each of the transceiver 106 may include a transmitter and/or a receiver.The transceiver 106 may be interchangeably used with radio frequency(RF) unit(s). In the present disclosure, the first wireless device 100may represent a communication modem/circuit/chip.

The second wireless device 200 may include at least one transceiver,such as a transceiver 206, at least one processing chip, such as aprocessing chip 201, and/or one or more antennas 208.

The processing chip 201 may include at least one processor, such aprocessor 202, and at least one memory, such as a memory 204. It isexemplarily shown in FIG. 2 that the memory 204 is included in theprocessing chip 201. Additional and/or alternatively, the memory 204 maybe placed outside of the processing chip 201.

The processor 202 may control the memory 204 and/or the transceiver 206and may be configured to implement the descriptions, functions,procedures, suggestions, methods and/or operational flowcharts describedin the present disclosure. For example, the processor 202 may processinformation within the memory 204 to generate third information/signalsand then transmit radio signals including the third information/signalsthrough the transceiver 206. The processor 202 may receive radio signalsincluding fourth information/signals through the transceiver 106 andthen store information obtained by processing the fourthinformation/signals in the memory 204.

The memory 204 may be operably connectable to the processor 202. Thememory 204 may store various types of information and/or instructions.The memory 204 may store a software code 205 which implementsinstructions that, when executed by the processor 202, perform thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure. For example,the software code 205 may implement instructions that, when executed bythe processor 202, perform the descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure. For example, the software code 205 may control theprocessor 202 to perform one or more protocols. For example, thesoftware code 205 may control the processor 202 to perform one or morelayers of the radio interface protocol.

Herein, the processor 202 and the memory 204 may be a part of acommunication modem/circuit/chip designed to implement RAT (e.g., LTE orNR). The transceiver 206 may be connected to the processor 202 andtransmit and/or receive radio signals through one or more antennas 208.Each of the transceiver 206 may include a transmitter and/or a receiver.The transceiver 206 may be interchangeably used with RF unit. In thepresent disclosure, the second wireless device 200 may represent acommunication modem/circuit/chip.

Hereinafter, hardware elements of the wireless devices 100 and 200 willbe described more specifically. One or more protocol layers may beimplemented by, without being limited to, one or more processors 102 and202. For example, the one or more processors 102 and 202 may implementone or more layers (e.g., functional layers such as physical (PHY)layer, media access control (MAC) layer, radio link control (RLC) layer,packet data convergence protocol (PDCP) layer, radio resource control(RRC) layer, and service data adaptation protocol (SDAP) layer). The oneor more processors 102 and 202 may generate one or more protocol dataunits (PDUs) and/or one or more service data unit (SDUs) according tothe descriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure. The one ormore processors 102 and 202 may generate messages, control information,data, or information according to the descriptions, functions,procedures, suggestions, methods and/or operational flowcharts disclosedin the present disclosure. The one or more processors 102 and 202 maygenerate signals (e.g., baseband signals) including PDUs, SDUs,messages, control information, data, or information according to thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure and providethe generated signals to the one or more transceivers 106 and 206. Theone or more processors 102 and 202 may receive the signals (e.g.,baseband signals) from the one or more transceivers 106 and 206 andacquire the PDUs, SDUs, messages, control information, data, orinformation according to the descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure.

The one or more processors 102 and 202 may be referred to ascontrollers, microcontrollers, microprocessors, or microcomputers. Theone or more processors 102 and 202 may be implemented by hardware,firmware, software, or a combination thereof. As an example, one or moreapplication specific integrated circuits (ASICs), one or more digitalsignal processors (DSPs), one or more digital signal processing devices(DSPDs), one or more programmable logic devices (PLDs), or one or morefield programmable gate arrays (FPGAs) may be included in the one ormore processors 102 and 202. The descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure may be implemented using firmware or software and thefirmware or software may be configured to include the modules,procedures, or functions. Firmware or software configured to perform thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure may beincluded in the one or more processors 102 and 202 or stored in the oneor more memories 104 and 204 so as to be driven by the one or moreprocessors 102 and 202. The descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure may be implemented using firmware or software in theform of code, commands, and/or a set of commands.

The one or more memories 104 and 204 may be connected to the one or moreprocessors 102 and 202 and store various types of data, signals,messages, information, programs, code, instructions, and/or commands.The one or more memories 104 and 204 may be configured by read-onlymemories (ROMs), random access memories (RAMs), electrically erasableprogrammable read-only memories (EPROMs), flash memories, hard drives,registers, cash memories, computer-readable storage media, and/orcombinations thereof. The one or more memories 104 and 204 may belocated at the interior and/or exterior of the one or more processors102 and 202. The one or more memories 104 and 204 may be connected tothe one or more processors 102 and 202 through various technologies suchas wired or wireless connection.

The one or more transceivers 106 and 206 may transmit user data, controlinformation, and/or radio signals/channels, mentioned in thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure, to one ormore other devices. The one or more transceivers 106 and 206 may receiveuser data, control information, and/or radio signals/channels, mentionedin the descriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure, from one ormore other devices. For example, the one or more transceivers 106 and206 may be connected to the one or more processors 102 and 202 andtransmit and receive radio signals. For example, the one or moreprocessors 102 and 202 may perform control so that the one or moretransceivers 106 and 206 may transmit user data, control information, orradio signals to one or more other devices. The one or more processors102 and 202 may perform control so that the one or more transceivers 106and 206 may receive user data, control information, or radio signalsfrom one or more other devices.

The one or more transceivers 106 and 206 may be connected to the one ormore antennas 108 and 208 and the one or more transceivers 106 and 206may be configured to transmit and receive user data, controlinformation, and/or radio signals/channels, mentioned in thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure, through theone or more antennas 108 and 208. In the present disclosure, the one ormore antennas 108 and 208 may be a plurality of physical antennas or aplurality of logical antennas (e.g., antenna ports).

The one or more transceivers 106 and 206 may convert received user data,control information, radio signals/channels, etc., from RF band signalsinto baseband signals in order to process received user data, controlinformation, radio signals/channels, etc., using the one or moreprocessors 102 and 202. The one or more transceivers 106 and 206 mayconvert the user data, control information, radio signals/channels,etc., processed using the one or more processors 102 and 202 from thebase band signals into the RF band signals. To this end, the one or moretransceivers 106 and 206 may include (analog) oscillators and/orfilters. For example, the one or more transceivers 106 and 206 canup-convert OFDM baseband signals to OFDM signals by their (analog)oscillators and/or filters under the control of the one or moreprocessors 102 and 202 and transmit the up-converted OFDM signals at thecarrier frequency. The one or more transceivers 106 and 206 may receiveOFDM signals at a carrier frequency and down-convert the OFDM signalsinto OFDM baseband signals by their (analog) oscillators and/or filtersunder the control of the one or more processors 102 and 202.

In the implementations of the present disclosure, a UE may operate as atransmitting device in uplink (UL) and as a receiving device in downlink(DL). In the implementations of the present disclosure, a BS may operateas a receiving device in UL and as a transmitting device in DL.Hereinafter, for convenience of description, it is mainly assumed thatthe first wireless device 100 acts as the UE, and the second wirelessdevice 200 acts as the BS. For example, the processor(s) 102 connectedto, mounted on or launched in the first wireless device 100 may beconfigured to perform the UE behavior according to an implementation ofthe present disclosure or control the transceiver(s) 106 to perform theUE behavior according to an implementation of the present disclosure.The processor(s) 202 connected to, mounted on or launched in the secondwireless device 200 may be configured to perform the BS behavioraccording to an implementation of the present disclosure or control thetransceiver(s) 206 to perform the BS behavior according to animplementation of the present disclosure.

In the present disclosure, a BS is also referred to as a node B (NB), aneNode B (eNB), or a gNB.

FIG. 3 shows an example of a wireless device to which implementations ofthe present disclosure is applied.

The wireless device may be implemented in various forms according to ause-case/service (refer to FIG. 1 ).

Referring to FIG. 3 , wireless devices 100 and 200 may correspond to thewireless devices 100 and 200 of FIG. 2 and may be configured by variouselements, components, units/portions, and/or modules. For example, eachof the wireless devices 100 and 200 may include a communication unit110, a control unit 120, a memory unit 130, and additional components140. The communication unit 110 may include a communication circuit 112and transceiver(s) 114. For example, the communication circuit 112 mayinclude the one or more processors 102 and 202 of FIG. 2 and/or the oneor more memories 104 and 204 of FIG. 2 . For example, the transceiver(s)114 may include the one or more transceivers 106 and 206 of FIG. 2and/or the one or more antennas 108 and 208 of FIG. 2 . The control unit120 is electrically connected to the communication unit 110, the memoryunit 130, and the additional components 140 and controls overalloperation of each of the wireless devices 100 and 200. For example, thecontrol unit 120 may control an electric/mechanical operation of each ofthe wireless devices 100 and 200 based onprograms/code/commands/information stored in the memory unit 130. Thecontrol unit 120 may transmit the information stored in the memory unit130 to the exterior (e.g., other communication devices) via thecommunication unit 110 through a wireless/wired interface or store, inthe memory unit 130, information received through the wireless/wiredinterface from the exterior (e.g., other communication devices) via thecommunication unit 110.

The additional components 140 may be variously configured according totypes of the wireless devices 100 and 200. For example, the additionalcomponents 140 may include at least one of a power unit/battery,input/output (I/O) unit (e.g., audio I/O port, video I/O port), adriving unit, and a computing unit. The wireless devices 100 and 200 maybe implemented in the form of, without being limited to, the robot (100a of FIG. 1 ), the vehicles (100 b-1 and 100 b-2 of FIG. 1 ), the XRdevice (100 c of FIG. 1 ), the hand-held device (100 d of FIG. 1 ), thehome appliance (100 e of FIG. 1 ), the IoT device (100 f of FIG. 1 ), adigital broadcast terminal, a hologram device, a public safety device,an MTC device, a medicine device, a FinTech device (or a financedevice), a security device, a climate/environment device, the AIserver/device (400 of FIG. 1 ), the BSs (200 of FIG. 1 ), a networknode, etc. The wireless devices 100 and 200 may be used in a mobile orfixed place according to a use-example/service.

In FIG. 3 , the entirety of the various elements, components,units/portions, and/or modules in the wireless devices 100 and 200 maybe connected to each other through a wired interface or at least a partthereof may be wirelessly connected through the communication unit 110.For example, in each of the wireless devices 100 and 200, the controlunit 120 and the communication unit 110 may be connected by wire and thecontrol unit 120 and first units (e.g., 130 and 140) may be wirelesslyconnected through the communication unit 110. Each element, component,unit/portion, and/or module within the wireless devices 100 and 200 mayfurther include one or more elements. For example, the control unit 120may be configured by a set of one or more processors. As an example, thecontrol unit 120 may be configured by a set of a communication controlprocessor, an application processor (AP), an electronic control unit(ECU), a graphical processing unit, and a memory control processor. Asanother example, the memory unit 130 may be configured by a RAM, a DRAM,a ROM, a flash memory, a volatile memory, a non-volatile memory, and/ora combination thereof.

FIG. 4 shows an example of UE to which implementations of the presentdisclosure is applied.

Referring to FIG. 4 , a UE 100 may correspond to the first wirelessdevice 100 of FIG. 2 and/or the wireless device 100 or 200 of FIG. 3 .

A UE 100 includes a processor 102, a memory 104, a transceiver 106, oneor more antennas 108, a power management module 110, a battery 112, adisplay 114, a keypad 116, a subscriber identification module (SIM) card118, a speaker 120, and a microphone 122.

The processor 102 may be configured to implement the descriptions,functions, procedures, suggestions, methods and/or operationalflowcharts disclosed in the present disclosure. The processor 102 may beconfigured to control one or more other components of the UE 100 toimplement the descriptions, functions, procedures, suggestions, methodsand/or operational flowcharts disclosed in the present disclosure.Layers of the radio interface protocol may be implemented in theprocessor 102. The processor 102 may include ASIC, other chipset, logiccircuit and/or data processing device. The processor 102 may be anapplication processor. The processor 102 may include at least one of adigital signal processor (DSP), a central processing unit (CPU), agraphics processing unit (GPU), a modem (modulator and demodulator). Anexample of the processor 102 may be found in SNAPDRAGON™ series ofprocessors made by Qualcomm®, EXYNOS™ series of processors made bySamsung®, a series of processors made by Apple®, HELIO™ series ofprocessors made by MediaTek®, ATOM™ series of processors made by Intel®or a corresponding next generation processor.

The memory 104 is operatively coupled with the processor 102 and storesa variety of information to operate the processor 102. The memory 104may include ROM, RAM, flash memory, memory card, storage medium and/orother storage device. When the embodiments are implemented in software,the techniques described herein can be implemented with modules (e.g.,procedures, functions, etc.) that perform the descriptions, functions,procedures, suggestions, methods and/or operational flowcharts disclosedin the present disclosure. The modules can be stored in the memory 104and executed by the processor 102. The memory 104 can be implementedwithin the processor 102 or external to the processor 102 in which casethose can be communicatively coupled to the processor 102 via variousmeans as is known in the art.

The transceiver 106 is operatively coupled with the processor 102, andtransmits and/or receives a radio signal. The transceiver 106 includes atransmitter and a receiver. The transceiver 106 may include basebandcircuitry to process radio frequency signals. The transceiver 106controls the one or more antennas 108 to transmit and/or receive a radiosignal.

The power management module 110 manages power for the processor 102and/or the transceiver 106. The battery 112 supplies power to the powermanagement module 110.

The display 114 outputs results processed by the processor 102. Thekeypad 116 receives inputs to be used by the processor 102. The keypad116 may be shown on the display 114.

The SIM card 118 is an integrated circuit that is intended to securelystore the international mobile subscriber identity (IMSI) number and itsrelated key, which are used to identify and authenticate subscribers onmobile telephony devices (such as mobile phones and computers). It isalso possible to store contact information on many SIM cards.

The speaker 120 outputs sound-related results processed by the processor102. The microphone 122 receives sound-related inputs to be used by theprocessor 102.

FIG. 5 is a wireless communication system.

As can be seen with reference to FIG. 5 , the wireless communicationsystem includes at least one base station (BS). The BS is divided into agNodeB (or gNB) 20 a and an eNodeB (or eNB) 20 b. The gNB 20 a supports5G mobile communication. The eNB 20 b supports 4G mobile communication,that is, long term evolution (LTE).

Each base station 20 a and 20 b provides a communication service for aspecific geographic area (commonly referred to as a cell) (20-1, 20-2,20-3). A cell may in turn be divided into a plurality of regions(referred to as sectors).

A UE typically belongs to one cell, and the cell to which the UE belongsis called a serving cell. A base station that provides a communicationservice for a serving cell is called a serving BS. Since the wirelesscommunication system is a cellular system, other cells adjacent to theserving cell exist. Other cell adjacent to the serving cell is referredto as a neighbor cell (or neighboring cell). A base station thatprovides a communication service to a neighboring cell is referred to asa neighbor BS. The serving cell and the neighboring cell are relativelydetermined based on the UE.

Hereinafter, downlink means communication from the base station 20 tothe UE 10, and uplink means communication from the UE 10 to the basestation 20. In the downlink, the transmitter may be a part of the basestation 20, and the receiver may be a part of the UE 10. In the uplink,the transmitter may be a part of the UE 10, and the receiver may be apart of the base station 20.

Meanwhile, a wireless communication system may be largely divided into afrequency division duplex (FDD) scheme and a time division duplex (TDD)scheme. According to the FDD scheme, uplink transmission and downlinktransmission are performed while occupying different frequency bands.According to the TDD scheme, uplink transmission and downlinktransmission are performed at different times while occupying the samefrequency band. The channel response of the TDD scheme is substantiallyreciprocal. This means that the downlink channel response and the uplinkchannel response are almost the same in a given frequency domain.Accordingly, in the TDD-based wireless communication system, there is anadvantage that the downlink channel response can be obtained from theuplink channel response. In the TDD scheme, since uplink transmissionand downlink transmission are time-divided in the entire frequency band,downlink transmission by the base station and uplink transmission by theUE cannot be simultaneously performed. In a TDD system in which uplinktransmission and downlink transmission are divided in subframe units,uplink transmission and downlink transmission are performed in differentsubframes.

<Operating Band in NR>

The operating bands in NR are as follows.

The operating band of Table 3 below is an operating band converted fromthe operating band of LTE/LTE-A. This is called the FR1 band.

TABLE 3 NR operating UL operating band DL operating band Duplex bandF_(UL) _(—) _(low)-F_(UL) _(—) _(high) F_(DL) _(—) _(low)-F_(DL) _(—)_(high) Mode n1 1920 MHz-1980 MHz 2110 MHz-2170 MHz FDD n2 1850 MHz-1910MHz 1930 MHz-1990 MHz FDD n3 1710 MHz-1785 MHz 1805 MHz-1880 MHz FDD n5824 MHz-849 MHz 869 MHz-894 MHz FDD n7 2500 MHz-2570 MHz 2620 MHz-2690MHz FDD n8 880 MHz-915 MHz 925 MHz-960 MHz FDD n12 699 MHz-716 MHz 729MHz-746 MHz FDD n20 832 MHz-862 MHz 791 MHz-821 MHz FDD n25 1850MHz-1915 MHz 1930 MHz-1995 MHz FDD n28 703 MHz-748 MHz 758 MHz-803 MHzFDD n34 2010 MHz-2025 MHz 2010 MHz-2025 MHz TDD n38 2570 MHz-2620 MHz2570 MHz-2620 MHz TDD n39 1880 MHz-1920 MHz 1880 MHz-1920 MHz TDD n402300 MHz-2400 MHz 2300 MHz-2400 MHz TDD n41 2496 MHz-2690 MHz 2496MHz-2690 MHz TDD n50 1432 MHz-1517 MHz 1432 MHz-1517 MHz TDD1 n51 1427MHz-1432 MHz 1427 MHz-1432 MHz TDD n66 1710 MHz-1780 MHz 2110 MHz-2200MHz FDD n70 1695 MHz-1710 MHz 1995 MHz-2020 MHz FDD n71 663 MHz-698 MHz617 MHz-652 MHz FDD n74 1427 MHz-1470 MHz 1475 MHz-1518 MHz FDD n75 N/A1432 MHz-1517 MHz SDL n76 N/A 1427 MHz-1432 MHz SDL n77 3300 MHz-4200MHz 3300 MHz-4200 MHz TDD n78 3300 MHz-3800 MHz 3300 MHz-3800 MHz TDDn79 4400 MHz-5000 MHz 4400 MHz-5000 MHz TDD n80 1710 MHz-1785 MHz N/ASUL n81 880 MHz-915 MHz N/A SUL n82 832 MHz-862 MHz N/A SUL n83 703MHz-748 MHz N/A SUL n84 1920 MHz-1980 MHz N/A SUL n86 1710 MHz-1780 MHzN/A SUL

The table below shows the NR operating bands defined on the highfrequency phase.

This is called the FR2 band.

TABLE 4 NR operating UL operating band DL operating band Duplex bandF_(UL) _(—) _(low)-F_(UL) _(—) _(high) F_(DL) _(—) _(low)-F_(DL) _(—)_(high) Mode n257 26500 MHz-29500 MHz 26500 MHz-29500 MHz TDD n258 24250MHz-27500 MHz 24250 MHz-27500 MHz TDD n259 37000 MHz-40000 MHz 37000MHz-40000 MHz TDD n260 37000 MHz-40000 MHz 37000 MHz-40000 MHz FDD n26127500 MHz-28350 MHz 27500 MHz-28350 MHz FDD

<Reference Sensitivity>

The reference sensitivity power level REFSENS is defined as the EISlevel at the center of the quiet zone in the RX beam peak direction, atwhich the throughput shall meet or exceed the requirements for thespecified reference measurement channel.

1. Reference sensitivity power level

(1) Reference sensitivity power level for power class 2

The throughput shall be ≥95% of the maximum throughput of the referencemeasurement channels. Table 5 shows the peak reference sensitivity. Therequirement is verified with the test metric of EIS (Link=RX beam peakdirection, Meas=Link Angle).

TABLE 5 Operating REFSENS (dBm)/Channel bandwidth band 50 MHz 100 MHz200 MHz 400 MHz n257 −92.0 −89.0 −86.0 −83.0 n258 −92.0 −89.0 −86.0−83.0 n261 −92.0 −89.0 −86.0 −83.0 n262 −86.8 −83.8 −80.8 −77.8 NOTE 1:The transmitter shall be set to P_(UMAX)

The REFSENS requirement shall be met for an uplink transmission usingQPSK DFT-s-OFDM waveforms and for uplink transmission bandwidth.

The minimum requirements for reference sensitivity shall be verifiedwith the network signaling value NS_200 configured.

(2) Reference sensitivity power level for power class 3

The throughput shall be ≥95% of the maximum throughput of the referencemeasurement channels. Table 6 shows the peak reference sensitivity. Therequirement is verified with the test metric of EIS (Link=RX beam peakdirection, Meas=Link Angle).

For the UEs that support multiple FR2 bands, the minimum requirement forReference sensitivity in Table 6 shall be increased per band,respectively, by the reference sensitivity relaxation parameterΔMB_(P,n). The requirement for the UE which supports a single FR2 bandis specified in Table 6. The requirement for the UE which supportsmultiple FR2 bands is specified in Table 6.

TABLE 6 Operating REFSENS (dBm)/Channel bandwidth band 50 MHz 100 MHz200 MHz 400 MHz n257 −88.3 −85.3 −82.3 −79.3 n258 −88.3 −85.3 −82.3−79.3 n259 −84.7 −81.7 −78.7 −75.7 n260 −85.7 −82.7 −79.7 −76.7 n261−88.3 −85.3 −82.3 −79.3 n262 −82.8 −79.8 −76.8 −73.8 NOTE 1: Thetransmitter shall be set to P_(UMAX)

The REFSENS requirement shall be met for an uplink transmission usingQPSK DFT-s-OFDM waveforms and for uplink transmission bandwidth.

The minimum requirements for reference sensitivity shall be verifiedwith the network signaling value NS_200 configured.

2. EIS spherical coverage

(1) EIS spherical coverage for power class 2

The maximum EIS at the 60^(th) percentile of the CCDF of EIS measuredover the full sphere around the UE is defined as the spherical coveragerequirement and is found in Table 7 below. The requirement is verifiedwith the test metric of EIS (Link=Spherical coverage grid, Meas=Linkangle).

TABLE 7 Operating EIS at 60^(th) %-tile CCDF (dBm)/Channel bandwidthband 50 MHz 100 MHz 200 MHz 400 MHz n257 −81.0 −78.0 −75.0 −72.0 n258−81.0 −78.0 −75.0 −72.0 n261 −81.0 −78.0 −75.0 −72.0 n262 −74.9 −71.9−68.9 −65.9 NOTE 1: The transmitter shall be set to P_(UMAX) NOTE 2: TheEIS spherical coverage requirements are verified only under normalthermal conditions

The requirement shall be met for an uplink transmission using QPSKDFT-s-OFDM waveforms and for uplink transmission bandwidth.

The minimum requirements for reference sensitivity shall be verifiedwith the network signaling value NS_200 configured.

(2) EIS spherical coverage for power class 3

The maximum EIS at the 50^(th) percentile of the CCDF of EIS measuredover the full sphere around the UE is defined as the spherical coveragerequirement and is found in Table 8 below. The requirement is verifiedwith the test metric of EIS (Link=Spherical coverage grid, Meas=Linkangle).

For the UEs that support multiple FR2 bands, the minimum requirement forEIS spherical coverage in Table 8 shall be increased per band,respectively, by the EIS spherical coveragerelaxation parameterΔMB_(S,n). The requirement for the UE which supports a single FR2 bandis specified in Table 8. The requirement for the UE which supportsmultiple FR2 bands is specified in Table 8.

TABLE 8 Operating EIS at 50th %-tile CCDF (dBm)/Channel bandwidth band50 MHz 100 MHz 200 MHz 400 MHz n257 −77.4 −74.4 −71.4 −68.4 n258 −77.4−74.4 −71.4 −68.4 n259 −71.9 −68.9 −65.9 −62.9 n260 −73.1 −70.1 −67.1−64.1 n261 −77.4 −74.4 −71.4 −68.4 n262 −69.7 −66.7 −63.7 −60.7 NOTE 1:The transmitter shall be set to P_(UMAX) NOTE 2: The EIS sphericalcoverage requirements are verified only under normal thermal conditions.

The requirement shall be met for an uplink transmission using QPSKDFT-s-OFDM waveforms and for uplink transmission bandwidth.

The minimum requirements for reference sensitivity shall be verifiedwith the network signaling value NS_200 configured.

REFSENS and EIS spherical coverage at 50%-tile CCDF for n263 isrequired.

<Disclosures of the Present Specification>

This specification proposes a transmit power requirement of an NRhandheld UE operating in FR2-2 (frequency range: 52600 MHz-71000 MHz),which is currently being discussed in the 3GPP Rel-17 standard.

Currently, the frequency range is defined as follows.

TABLE 9 Frequency range designation Corresponding frequency range FR1 410 MHz-7125 MHz FR2 FR2-1 24250 MHz-52600 MHz FR2-2 52600 MHz-71000MHz

In FR2-2, handheld UE, vehicular UE, FWA, etc. will be used, and RFstandards for this are being discussed. RF standards are generallyclearly defined in band numbers defined in Frequency Range (FR). InFR2-2, to date, n263 has been defined.

Table 10 shows the operating bands of NR in FR2.

TABLE 10 Uplink (UL) and Downlink (DL) operating band BStransmit/receive NR UE transmit/receive operating F_(UL) _(—)_(low)-F_(UL) _(—) _(high) Duplex band F_(DL) _(—) _(low)-F_(DL) _(—)_(high) mode n257 26500 MHz-29500 MHz TDD n258 24250 MHz-27500 MHz TDDn259 39500 MHz-43500 MHz TDD n260 37000 MHz-40000 MHz TDD n261 27500MHz-28350 MHz TDD n262 47200 MHz-48200 MHz TDD n263 (Note) 57000MHz-71000 MHz TDD (NOTE): This band is restricted to operation withshared spectrum channel access

The operating band may mean an operating band. The operating band maymean a frequency band in which communication may be performed.

F_(UL_low) may mean the smallest frequency that can be used for theuplink operating band in each operating band, and F_(UL_high) may meanthe largest frequency that can be used for the uplink operating band ineach operating band. F_(DL_low) may mean the smallest frequency that canbe used for the downlink operating band in each operating band, andF_(DL_high) may mean the largest frequency that can be used for thedownlink operating band in each operating band.

Referring to Table 10, FR2-2 may be n263. FR2-2 to be described latermay mean the n263 band.

The followings were agreed for FR2-2.

i) Handheld UE antenna array number of elements assumption:

-   -   Commercial FR2-1 antenna module physical dimension can be        treated as the feasible FR2-2 antenna module dimension.    -   Commercial FR2-1 antenna module is equipped with 1×4 or 2×2        antenna elements.

ii) Vehicular UE antenna array assumption

-   -   Vehicular array size may be equal to or larger than the        handheld.

iii) FWA UE antenna array assumption

-   -   If a single power class is defined for FWA in Rel-17, the number        of antenna element assumption is anywhere in the range between        32 and 64 elements.

Table 3.3 and Table 3.4 summarize the reference sensitivity and EISspherical coverage at channel bandwidth (CBW) of 400 MHz whichcorrespond to power class 1, 2, 3, 4 and 5 in FR2-1.

Table 11 may show reference sensitivity and EIS spherical coveragecorresponding to power classes 1, 2, 3, 4, and 5 in FR2-1 and having achannel bandwidth (CBW) of 400 MHz.

TABLE 11 Operating Reference sensitivity (dBm)/400 MHz band FrequencyPC1 PC2 PC3 PC4 PC5 n257 28 GHz(26500 MHz-29500 MHz) −88.5 −83.0 −79.3−88.0 −83.6 n258 24 GHz(24250 MHz-27500 MHz) −88.5 −83.0 −79.3 −88.0−83.8 n259 39 GHz(39500 MHz-43500 MHz) −75.7 −80.7 n260 39 GHz(37000MHz-40000 MHz) −85.5 −76.7 −86.0 n261 28 GHz(27500 MHz-28350 MHz) −88.5−83.0 −79.3 −88.0 n262 47 GHz(47200 MHz-48200 MHz) −83.5 −77.8 −73.8−82.0

Table 12 shows EIS spherical coverage at CBW of 400 MHz for Power Class1, 2, 3, 4 and 5 in FR2-1

TABLE 12 EIS at X %-tile CCDF (dBm)/400 MHz Operating PC1 PC2 PC3 PC4PC5 band X = 85 X = 60 X = 50 X = 20 X = 85 n257 −80.5 −72.0 −68.4 −79.0−75.6 n258 −80.5 −72.0 −68.4 −79.0 −75.8 n259 −62.9 −72.7 n260 −77.5−64.1 −74.0 n261 −80.5 −72.0 −68.4 −79.0 n262 −75.3 −65.9 −60.7 −69.9

Table 13 summarize the difference between the minimum peak EIRP andspherical coverage's EIRP which correspond to each X %-tile for powerclass. The difference is used for EIS spherical coverage requirements.

Table 13 shows the difference between the minimum peak EIRP andspherical coverage's EIRP which correspond to each X %-tile for powerclass.

TABLE 13 Difference between minimum peak EIRP and EIRP at X %-tile CDF(dB) Operating PC1 PC2 PC3 PC4 PC5 band X = 85 X = 60 X = 50 X = 20 X =85 n257 8.0 11.0 10.9 9.0 8.0 n258 8.0 11.0 10.9 9.0 8.0 n259 12.9 8.0n260 8.0 12.9 12.0 n261 8.0 11.0 10.9 9.0 n262 8.2 11.9 13.1 12.1

Here, the UE type was assumed for PC1˜PC5 in FR2-1 as seen Table 14.

TABLE 14 UE Power class UE type 1 Fixed wireless access (FWA) UE 2Vehicular UE 3 Handheld UE 4 High power non-handheld UE 5 Fixed wirelessaccess (FWA) UE

This specification proposes the requirements of a handheld UE. Ahandheld UE in the present specification may correspond to a power class3 UE.

That is, requirements of the power class 3 UE may be proposed in thisspecification.

FIG. 6 shows an array antenna module type in FR2-2.

For handheld UE, based on the agreement in WF, 8(8Tx: 1×8) and16(16Tx:2×8, 4×4) are investigated for number of antenna elements asseen in FIG. 6 .

FIG. 7 shows an array antenna module of 1×8 in FR2-2.

1 panel and 2 panels are shown in FIG. 7 .

In order to receive the base station DL signal from the handheld UE, areceived signal level of SNR=−1 dB relative to a white noise referencemay need to be guaranteed. For this, reference sensitivity (=peakEffective Isotropic Sensitivity (EIS) and EIS spherical coverage shouldbe standardized in the very high frequency band. EIS spherical coveragemay be defined with different X values for each power class, that is,for each UE type. That is, depending on the UE type, the requiredspherical coverage may be specified differently.

Case 1. Reference sensitivity

When the number of antenna elements is 8 or 16 and the channel bandwidthis 400 MHz, reference sensitivity may be calculated as shown in Table15. Here, the antenna roll-off loss with respect to frequency may beassumed to be −2.5 dB in consideration of the wide frequency range of57000 MHz to 71000 MHz of the n263. Table 15 shows the referencesensitivity of the handheld UE in FR2-2.

TABLE 15 Parameter Unit Value Frequency range GHz 57~71 Modulation QPSKSNR requirement dB −1 Bandwidth MHz 400 10*log10(Max. RX BW), dB 85.8Max. Rx BW = 264 RB@120 kHz Thermal noise dBm/Hz −174 Noise Figure(NF)dB 15 Number of panel 1 or 2 1 # of antennas in an array 8 16 Array gaindB 9.0 12.04 Average antenna element gain dBi 4.6 4.6 Antenna gainroll-off over dB −2.5 −2.5 frequency Realized antenna array gain dBi11.1 14.1 Diversity gain dB 0 0 Total Implementation loss(ILs) dB 10 12REFSENS @ 400 MHz dBm −75.3 −76.3

Here, Max. RX BW may be SCS*Maximum_transmission_bandwidth (N_(RB))*12.Table 16 shows the maximum transmission bandwidth configuration N_(RB).

TABLE 16 SCS 50 MHz 100 MHz 200 MHz 400 MHz (kHz) N_(RB) N_(RB) N_(RB)N_(RB) 60 66 132 264 N.A 120 32 66 132 264

Table 17 shows the reference sensitivity for different channelbandwidths based on the reference sensitivity at 400 MHz.

The added value is based on 10*log 10 (other channel bandwidth/400).

Table 17 shows REFSENS of FR2-2 handheld UE.

TABLE 17 Number of REFSENS (dBm)/Channel bandwidth = X dBm/Y MHzOperating antenna 50 100 200 400 800 1200 1600 2000 band elements MHzMHz MHz MHz MHz MHz MHz MHz n263 8 −84.3 −81.3 −78.3 −75.3 −72.3 −70.5−69.3 −68.3 16 −85.3 −82.3 −79.3 −76.3 −73.3 −71.5 −70.3 −69.3

Total IM loss may vary depending on the actual implementation method.Therefore, by applying the additional implementation margin delta to thereference sensitivity (X) of Table 17, the reference sensitivity may bedetermined as follows.

-   -   Reference Sensitivity=X (reference sensitivity in Table        17)+delta

Here, the delta may be +/−0.1, +/−0.2, . . . , +/−4.0 dB.

For example, when delta is 3.3 dB, REFSENS may be −72 dBm in n263 bandof 400 MHz of channel bandwidth.

Case 2. EIS spherical coverage

For EIS spherical coverage, the difference between EIRP and minimum peakEIRP in 50%-tile cumulative distribution function (CDF) may be reused inFR2-1 as follows.

-   -   EIS spherical coverage=reference sensitivity+‘the difference        between the minimum peak EIRP and EIRP at 50%-tile CDF’

In 8 antenna elements & 16 antenna elements, the difference between EIRPand minimum peak EIRP in 50%-tile CDF may be as shown in Table 18.

Table 18 shows the difference (Z) between EIRP and minimum peak EIRP in50%-tile CDF of handheld UE.

TABLE 18 Difference(Z) between minimum peak EIRP and EIRP at 50%-tileCDF (dBm) 1 × 8 2 × 8 4 × 4 Operating 1 2 1 2 1 2 band PC3 panel panelspanel panels panel panels n257 10.9 n258 10.9 n259 12.9 n260 12.9 n26110.9 n262 13.1 n263 14 + M 9 + M 11.5 + M 7.5 + M M may be animplementation margin. M may be 0.1, 0.2, . . . , 4.0 dB.

EIS spherical coverage at 50%-tile CCDF may be ‘Reference sensitivity(Table 17)+Z (difference in Table 18)’.

For example, when M is 0, EIS spherical coverage at 50%-tile CCDF may beas shown in Table 19.

Table 19 shows EIS spherical coverage in 50%-tile CCDF of handheld UE.

TABLE 19 EIS spherical coverage at 50%-tile CCDF Number of Number of(dBm)/Channel bandwidth = X dBm/Y MHz Operating antenna # of antenna 50100 200 400 800 1200 1600 2000 band elements panel elements MHz MHz MHzMHz MHz MHz MHz MHz n263 8 1  8 (1 × 8) −70.3 −67.3 −64.3 −61.3 −58.3−56.5 −55.3 −54.3 2  8 (1 × 8) −75.3 −72.3 −69.3 −66.3 −63.3 −61.5 −60.3−59.3 16 2 16(2 × 8) −73.8 −70.8 −67.8 −64.8 −61.8 −60 −58.8 −57.8 216(4 × 4) −77.8 −74.8 −71.8 −68.8 −65.8 −64 −62.8 −61.8

Under the assumption of M=0, if Z (difference) values are comparedbetween the number of panels, 1 panel>2 panels may be obtained. In termsof spherical coverage, performance specifications may be suggested basedon a two-panel configuration.

In the case of 16 antenna elements, 2×8 in 2 panels may have a Z value4.0 dB greater than 4×4. In terms of the minimum requirement,performance specifications may be determined with a basic assumption of2×8.

When M is 1.1 dB, EIS spherical coverage at 50%-tile CCDF in n263 bandof power class 3 and a channel bandwidth of 400 MHz may be −60.2 dBm.

In this specification, reference sensitivity and EIS spherical coveragestandards are presented based on the array antenna type of the FR2-2handheld UE. In Case 1, reference sensitivity is proposed, and in Case2, EIS spherical coverage is proposed. In each case, thepresence/absence of a ground plane is also presented. The ground planemay be a flat plate to which an antenna is attached.

When the number of antennas of the handheld terminal increases, theminimum peak EIRP may increase. However, since a heat problem occurs, itis necessary to implement an appropriate number of antennas.

In the case of two panels, the spherical coverage can be improved thanthat of one panel.

For example, in the case of Pout>0 dBm in FR2-2 handheld UE, referencesensitivity and EIS spherical coverage standards may be proposedassuming 8 antenna elements and 2 panels (8 antenna elements per panel)implementation.

Alternatively, if Pout≤0 dBm in FR2-2 handheld UE, reference sensitivityand EIS spherical coverage standards may be proposed assuming 16 antennaelements and 2 panels (16 antenna elements per panel) implementation.

A general handheld-network operation for this may be as follows.

-   -   The UE may inform the network that the UE itself is an FR2-2        handheld UE.    -   The UE may satisfy the FR2-2 handheld UE Rx RF requirement.    -   The network may set parameters so that the FR2-2 handheld UE can        operate normally.    -   The UE may perform communication with the network and        mobility-related measurement based on the set parameters.

FIG. 8 shows a procedure of a UE according to the disclosure of thepresent specification.

1. The UE may receive a downlink signal from the base station.

The downlink signal may be received with a channel bandwidth of 400 MHz.

The downlink signal may be received via n263 frequency band.

The UE may be a power class 3 UE.

The transceiver may satisfy radio frequency (RF) requirements.

The RF RF requirement includes at least one of REFSENS (ReferenceSensitivity) and EIS (Effective Isotropic Sensitivity) sphericalcoverage

The REFSENS may be −72 dBm.

The EIS spherical coverage may be EIS value at 50 percentile of CCDF(complementary cumulative distribution function).

The EIS spherical coverage may be −60.2 dBm.

The UE may include 8 antennas.

The n263 frequency band may be 57000 MHz or more and 71000 MHz or less.

Hereinafter, a processor for performing communication in a wirelesscommunication system according to some embodiments of the presentspecification will be described.

The processor receives a downlink signal, wherein the downlink signal isreceived with channel bandwidth of 400 MHz, wherein the downlink signalis received via n263 frequency band, wherein the UE is power class 3 UE,wherein the transceiver is configured to satisfy a Radio Frequency (RF)requirement, wherein the RF requirement includes at least one of REFSENS(Reference Sensitivity) and EIS (Effective Isotropic Sensitivity)spherical coverage.

Hereinafter, a non-volatile computer-readable medium storing one or moreinstructions for providing a multicast service in a wirelesscommunication system according to some embodiments of the presentspecification will be described.

According to some embodiments of the present disclosure, the technicalfeatures of the present disclosure may be directly implemented ashardware, software executed by a processor, or a combination of the two.For example, in wireless communication, a method performed by a wirelessdevice may be implemented in hardware, software, firmware, or anycombination thereof. For example, the software may reside in RAM memory,flash memory, ROM memory, EPROM memory, EEPROM memory, registers, harddisk, removable disk, CD-ROM, or other storage medium.

Some examples of a storage medium are coupled to the processor such thatthe processor can read information from the storage medium.Alternatively, the storage medium may be integrated into the processor.The processor and storage medium may reside in the ASIC. For anotherexample, a processor and a storage medium may reside as separatecomponents.

Computer-readable media can include tangible and non-volatilecomputer-readable storage media.

For example, non-volatile computer-readable media may include randomaccess memory (RAM), such as synchronization dynamic random accessmemory (SDRAM), read-only memory (ROM), or non-volatile random accessmemory (NVRAM). Read-only memory (EEPROM), flash memory, magnetic oroptical data storage media, or other media that can be used to storeinstructions or data structures or Non-volatile computer readable mediamay also include combinations of the above.

Further, the methods described herein may be realized at least in partby computer-readable communication media that carry or carry code in theform of instructions or data structures and that can be accessed, read,and/or executed by a computer.

According to some embodiments of the present disclosure, anon-transitory computer-readable medium has one or more instructionsstored thereon. The stored one or more instructions may be executed by aprocessor of the base station.

The stored one or more instructions cause the processors to receive adownlink signal, wherein the downlink signal is received with channelbandwidth of 400 MHz, wherein the downlink signal is received via n263frequency band, wherein the UE is power class 3 UE, wherein thetransceiver is configured to satisfy a Radio Frequency (RF) requirement,wherein the RF requirement includes at least one of REFSENS (ReferenceSensitivity) and EIS (Effective Isotropic Sensitivity) sphericalcoverage.

The present specification may have various effects.

For example, by proposing a standard specification for a handheld UEsupporting the n263 band, communication between the network and the UEcan be guaranteed and commercialized.

Effects that can be obtained through specific examples of the presentspecification are not limited to the effects listed above. For example,various technical effects that a person having ordinary skill in therelated art can understand or derive from this specification may exist.Accordingly, the specific effects of the present specification are notlimited to those explicitly described herein, and may include variouseffects that can be understood or derived from the technicalcharacteristics of the present specification.

The claims described herein may be combined in various ways. Forexample, the technical features of the method claims of the presentspecification may be combined and implemented as an apparatus, and thetechnical features of the apparatus claims of the present specificationmay be combined and implemented as a method. In addition, the technicalfeatures of the method claim of the present specification and thetechnical features of the apparatus claim may be combined to beimplemented as an apparatus, and the technical features of the methodclaim of the present specification and the technical features of theapparatus claim may be combined and implemented as a method. Otherimplementations are within the scope of the following claims.

What is claimed is:
 1. A UE (User Equipment) to perform communication,comprising: a transceiver; and a processor, wherein the transceiverreceives a downlink signal, wherein the downlink signal is received withchannel bandwidth of 400 MHz, wherein the downlink signal is receivedvia n263 frequency band, wherein the UE is power class 3 UE, wherein thetransceiver is configured to satisfy a Radio Frequency (RF) requirement,wherein the RF requirement includes at least one of REFSENS (ReferenceSensitivity) and EIS (Effective Isotropic Sensitivity) sphericalcoverage.
 2. The UE of claim 1, wherein the REFSENS is −72 dBm.
 3. TheUE of claim 1, wherein the EIS spherical coverage is EIS value at 50percentile of CCDF (complementary cumulative distribution function),wherein EIS spherical coverage is −60.2 dBm.
 4. The UE of claim 1,wherein the UE includes 8 antennas.
 5. The UE of claim 1, wherein then263 frequency band is a frequency band between 57000 MHz and 71000 MHz.6. A method for performing communication, performed by a UE (UserEquipment), comprising: receiving a downlink signal, wherein thedownlink signal is received with channel bandwidth of 400 MHz, whereinthe downlink signal is received via n263 frequency band, wherein the UEis power class 3 UE, wherein the transceiver is configured to satisfy aRadio Frequency (RF) requirement, wherein the RF requirement includes atleast one of REFSENS (Reference Sensitivity) and EIS (EffectiveIsotropic Sensitivity) spherical coverage.
 7. The method of claim 6,wherein the REFSENS is −72 dBm.
 8. The method of claim 6, wherein theEIS spherical coverage is EIS value at 50 percentile of CCDF(complementary cumulative distribution function), wherein EIS sphericalcoverage is −60.2 dBm.
 9. The method of claim 6, wherein the UE includes8 antennas.
 10. The method of claim 6, wherein the n263 frequency bandis a frequency band between 57000 MHz and 71000 MHz.
 11. An apparatus inmobile communication, the apparatus comprising: at least one processor;and at least one memory storing instructions and operably electricallyconnectable with the at least one processor; wherein, based on theinstructions performed by the at least one processor, operationincludes: receiving a downlink signal, wherein the downlink signal isreceived with channel bandwidth of 400 MHz, wherein the downlink signalis received via n263 frequency band, wherein the UE is power class 3 UE,wherein the transceiver is configured to satisfy a Radio Frequency (RF)requirement, wherein the RF requirement includes at least one of REFSENS(Reference Sensitivity) and EIS (Effective Isotropic Sensitivity)spherical coverage.